钢管 规格表
2种规格数据
钢管是用于配管、结构件和流体输送等多种用途的圆形截面钢产品。碳钢管(KS D 3507)最广泛用于水、蒸汽和气体管道；不锈钢管用于食品、制药和半导体等需要耐腐蚀和卫生的场合。壁厚按Schedule号选择。
常见问题 (FAQ)
What is the difference between carbon steel pipe and stainless steel pipe?
Carbon steel pipe (SGP) is cheaper and suitable for general piping but susceptible to corrosion. Stainless steel pipe (SUS304/316) excels in corrosion resistance and hygiene for food, medical, and chemical piping — at higher cost.
What is the difference between pipe size notation A and B?
A (mm) and B (inch) are different notations for the same pipe. E.g., 25A = 1B (approx. 1 inch). These are nominal sizes, not actual bore — check the spec table for actual OD and ID.
How do I choose between SUS304 and SUS316 piping?
SUS304 suits general corrosion environments (water, air, mild acids). SUS316 has added molybdenum for superior resistance to chlorides, brine, and strong acids — used in marine and chemical plants.